Buckle



(No Model.) J S BOYD BUGKLB. No. 368,274. Patented Aug. 16, 1887.

witness e 0 81400141 06 gm M Join ,STBoyd 6M M H UNITED STATES PATENT OFFICE.

JOHN S. BOYD, OF BALTIMORE, MARYLAND.

BUCKLE.

SPECIPICATIQN forming part of Letters Patent No. 368,274, dated August 16 1887.

Application filed June 23, 1887. Serial No. 242,231.

To aZZ'whofit it may concern:

Be it known that I, JOHN S. BOYD, a citizen of the United States, residing at Baltimore city, State of Maryland, have invented certain new and useful Improvements in Buckles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in buckles; and it is spe cially designed as an improvement in certain points of construction over Letters Patent No. 364,210, issued to me June 7, 1887; and the object I have in view in this invention is to make'a buckle more suitable, particularly for harness, though it may of course be used for various other purposes, such as trunks, shawl-straps, &c.

In the accompanying drawings, forming a part of this specification, and on which similar letters of reference indicate the same or corresponding features, Figure 1 represents a View looking at the rear end of the buckle, and showing the tongue of the buckle thrown away from its seat. Fig. 2 is a sectional view taken longitudinally through the buckle. Figs. 3 and 4 are modifications.

The letter A designates the frame proper of the buckle, the same being of the usual or any approved construction, and in the present instance having the contour of its upper face slightly concave. The forward edge of the frame at the point B is slightly recessed or depressed, in which depression the tongue or prong rests, as in a seat, when the buckle is under strain. Located at a point about mid way the ends of the frame, and depending therefrom, are the lugs G and cross-bar D, the lugs and cross-bar being cast integrally with the frame itself, and the cross-bar is recessed or partially hollowed out on its rear face, so as to accommodate the spring E. The upper face of the cross-bar D at its center is cut away for a short distance, so as to admit of the play of the prong F. As seen in Fig. 2, this prong at its lower end is provided with apertures G and H, through the former of which passes a pivot-bar, I, so as to hold the prong in place. The side faces of the lugs near the lower ends are drilled and the pivot-bar I (No model.)

is driven through first one lug, then through the prong, and then through the other lug, into which it fits snugly and is firmly secured in place.

The aperture II is for the insertion of aportion of the spring E, above referred to, which is coiled first on one side of the prong, then passed through the aperture H, and then coiled on the other side of the prong, the two ends of said spring being upset or turned over against the upper ends, J, of the hollowed-out cross-bar, so that the normal tendency of the tongue or prong is to assume a position opposite to that which it would occupy when in use; or, in other words, is away from its seat, as fully described and set forth in the Letters Patent above referred to.

The modification shown in Fig. 3 is sometimes found quite useful, especially for trunks, shawl-straps, &c., and the essential difference between it and the principal form shown is in the omission of the rear portion of the frame shown in Fig. 1, together with the elevation of the cross-bar to the same longitudinal plane with the body of the buckle.

The modification shown in Fig. 4 differs from that shown in Fig. 3 in that the forward bar in this instance is provided with a roller, K, which is found very useful, especially in trunks, where it is particularly desired to draw the straps tight, the revolution of the roller preventing the otherwise considerable friction which occurs between the strap and the forward bar of the frame when the strap is tightly drawn.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, 1's- 1. In a buckle, the combination, with the frame thereof, provided with a recessed or hollowed-out cross-bar, ofa prong or tooth mounted in said crossbar, and a spring located in proximity to the prong and adapted to force the prong away from its seat.

2. In a buckle, the combination, with the frame thereof, provided with depending lugs and a partially hollowed-out cross-bar united thereto, of a prong or tooth mounted in said cross-bar, and a spring located in proximity to the prong and adapted to force the prong away from its seat.

IFO

3. In a buckle, the combination, with the frame thereof, having its forward barat the point where the prong touches the same depressed, said frame being provided with depending lugs and a partially hollowed-out cross-bar united thereto, and a prong or tooth mounted in said cross-bar upon a pivot-rod running through the same, of a spring coiled around said rod on either side of and con' neoted with the prong in such a manner as to normally force the prong away from its seat. 4. In a buckle, the combination, with the frame thereof, having a roller mounted upon its forward bar and provided with a recessed or partially hollowed-out cross-bar, of a prong or tooth mounted in'said cross-bar,and a spring located in proximity to the prong and constructed to force the prong away from its seat.

In testimony whereof I'affix my signature in presence of two witnesses.

' JOHN S. BOYD.

Witnesses:

WM. H. H. RALEIGH, G. W. S. DIUSGRAVE. 

